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Diffstat (limited to '.venv/lib/python3.12/site-packages/deprecated/sphinx.py')
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1 files changed, 281 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/deprecated/sphinx.py b/.venv/lib/python3.12/site-packages/deprecated/sphinx.py new file mode 100644 index 00000000..90435c64 --- /dev/null +++ b/.venv/lib/python3.12/site-packages/deprecated/sphinx.py @@ -0,0 +1,281 @@ +# coding: utf-8 +""" +Sphinx directive integration +============================ + +We usually need to document the life-cycle of functions and classes: +when they are created, modified or deprecated. + +To do that, `Sphinx <http://www.sphinx-doc.org>`_ has a set +of `Paragraph-level markups <http://www.sphinx-doc.org/en/stable/markup/para.html>`_: + +- ``versionadded``: to document the version of the project which added the described feature to the library, +- ``versionchanged``: to document changes of a feature, +- ``deprecated``: to document a deprecated feature. + +The purpose of this module is to defined decorators which adds this Sphinx directives +to the docstring of your function and classes. + +Of course, the ``@deprecated`` decorator will emit a deprecation warning +when the function/method is called or the class is constructed. +""" +import re +import textwrap + +from deprecated.classic import ClassicAdapter +from deprecated.classic import deprecated as _classic_deprecated + + +class SphinxAdapter(ClassicAdapter): + """ + Sphinx adapter -- *for advanced usage only* + + This adapter override the :class:`~deprecated.classic.ClassicAdapter` + in order to add the Sphinx directives to the end of the function/class docstring. + Such a directive is a `Paragraph-level markup <http://www.sphinx-doc.org/en/stable/markup/para.html>`_ + + - The directive can be one of "versionadded", "versionchanged" or "deprecated". + - The version number is added if provided. + - The reason message is obviously added in the directive block if not empty. + """ + + def __init__( + self, + directive, + reason="", + version="", + action=None, + category=DeprecationWarning, + extra_stacklevel=0, + line_length=70, + ): + """ + Construct a wrapper adapter. + + :type directive: str + :param directive: + Sphinx directive: can be one of "versionadded", "versionchanged" or "deprecated". + + :type reason: str + :param reason: + Reason message which documents the deprecation in your library (can be omitted). + + :type version: str + :param version: + Version of your project which deprecates this feature. + If you follow the `Semantic Versioning <https://semver.org/>`_, + the version number has the format "MAJOR.MINOR.PATCH". + + :type action: Literal["default", "error", "ignore", "always", "module", "once"] + :param action: + A warning filter used to activate or not the deprecation warning. + Can be one of "error", "ignore", "always", "default", "module", or "once". + If ``None`` or empty, the global filtering mechanism is used. + See: `The Warnings Filter`_ in the Python documentation. + + :type category: Type[Warning] + :param category: + The warning category to use for the deprecation warning. + By default, the category class is :class:`~DeprecationWarning`, + you can inherit this class to define your own deprecation warning category. + + :type extra_stacklevel: int + :param extra_stacklevel: + Number of additional stack levels to consider instrumentation rather than user code. + With the default value of 0, the warning refers to where the class was instantiated + or the function was called. + + :type line_length: int + :param line_length: + Max line length of the directive text. If non nul, a long text is wrapped in several lines. + + .. versionchanged:: 1.2.15 + Add the *extra_stacklevel* parameter. + """ + if not version: + # https://github.com/laurent-laporte-pro/deprecated/issues/40 + raise ValueError("'version' argument is required in Sphinx directives") + self.directive = directive + self.line_length = line_length + super(SphinxAdapter, self).__init__( + reason=reason, version=version, action=action, category=category, extra_stacklevel=extra_stacklevel + ) + + def __call__(self, wrapped): + """ + Add the Sphinx directive to your class or function. + + :param wrapped: Wrapped class or function. + + :return: the decorated class or function. + """ + # -- build the directive division + fmt = ".. {directive}:: {version}" if self.version else ".. {directive}::" + div_lines = [fmt.format(directive=self.directive, version=self.version)] + width = self.line_length - 3 if self.line_length > 3 else 2**16 + reason = textwrap.dedent(self.reason).strip() + for paragraph in reason.splitlines(): + if paragraph: + div_lines.extend( + textwrap.fill( + paragraph, + width=width, + initial_indent=" ", + subsequent_indent=" ", + ).splitlines() + ) + else: + div_lines.append("") + + # -- get the docstring, normalize the trailing newlines + # keep a consistent behaviour if the docstring starts with newline or directly on the first one + docstring = wrapped.__doc__ or "" + lines = docstring.splitlines(True) or [""] + docstring = textwrap.dedent("".join(lines[1:])) if len(lines) > 1 else "" + docstring = lines[0] + docstring + if docstring: + # An empty line must separate the original docstring and the directive. + docstring = re.sub(r"\n+$", "", docstring, flags=re.DOTALL) + "\n\n" + else: + # Avoid "Explicit markup ends without a blank line" when the decorated function has no docstring + docstring = "\n" + + # -- append the directive division to the docstring + docstring += "".join("{}\n".format(line) for line in div_lines) + + wrapped.__doc__ = docstring + if self.directive in {"versionadded", "versionchanged"}: + return wrapped + return super(SphinxAdapter, self).__call__(wrapped) + + def get_deprecated_msg(self, wrapped, instance): + """ + Get the deprecation warning message (without Sphinx cross-referencing syntax) for the user. + + :param wrapped: Wrapped class or function. + + :param instance: The object to which the wrapped function was bound when it was called. + + :return: The warning message. + + .. versionadded:: 1.2.12 + Strip Sphinx cross-referencing syntax from warning message. + + """ + msg = super(SphinxAdapter, self).get_deprecated_msg(wrapped, instance) + # Strip Sphinx cross-reference syntax (like ":function:", ":py:func:" and ":py:meth:") + # Possible values are ":role:`foo`", ":domain:role:`foo`" + # where ``role`` and ``domain`` should match "[a-zA-Z]+" + msg = re.sub(r"(?: : [a-zA-Z]+ )? : [a-zA-Z]+ : (`[^`]*`)", r"\1", msg, flags=re.X) + return msg + + +def versionadded(reason="", version="", line_length=70): + """ + This decorator can be used to insert a "versionadded" directive + in your function/class docstring in order to document the + version of the project which adds this new functionality in your library. + + :param str reason: + Reason message which documents the addition in your library (can be omitted). + + :param str version: + Version of your project which adds this feature. + If you follow the `Semantic Versioning <https://semver.org/>`_, + the version number has the format "MAJOR.MINOR.PATCH", and, + in the case of a new functionality, the "PATCH" component should be "0". + + :type line_length: int + :param line_length: + Max line length of the directive text. If non nul, a long text is wrapped in several lines. + + :return: the decorated function. + """ + adapter = SphinxAdapter( + 'versionadded', + reason=reason, + version=version, + line_length=line_length, + ) + return adapter + + +def versionchanged(reason="", version="", line_length=70): + """ + This decorator can be used to insert a "versionchanged" directive + in your function/class docstring in order to document the + version of the project which modifies this functionality in your library. + + :param str reason: + Reason message which documents the modification in your library (can be omitted). + + :param str version: + Version of your project which modifies this feature. + If you follow the `Semantic Versioning <https://semver.org/>`_, + the version number has the format "MAJOR.MINOR.PATCH". + + :type line_length: int + :param line_length: + Max line length of the directive text. If non nul, a long text is wrapped in several lines. + + :return: the decorated function. + """ + adapter = SphinxAdapter( + 'versionchanged', + reason=reason, + version=version, + line_length=line_length, + ) + return adapter + + +def deprecated(reason="", version="", line_length=70, **kwargs): + """ + This decorator can be used to insert a "deprecated" directive + in your function/class docstring in order to document the + version of the project which deprecates this functionality in your library. + + :param str reason: + Reason message which documents the deprecation in your library (can be omitted). + + :param str version: + Version of your project which deprecates this feature. + If you follow the `Semantic Versioning <https://semver.org/>`_, + the version number has the format "MAJOR.MINOR.PATCH". + + :type line_length: int + :param line_length: + Max line length of the directive text. If non nul, a long text is wrapped in several lines. + + Keyword arguments can be: + + - "action": + A warning filter used to activate or not the deprecation warning. + Can be one of "error", "ignore", "always", "default", "module", or "once". + If ``None``, empty or missing, the global filtering mechanism is used. + + - "category": + The warning category to use for the deprecation warning. + By default, the category class is :class:`~DeprecationWarning`, + you can inherit this class to define your own deprecation warning category. + + - "extra_stacklevel": + Number of additional stack levels to consider instrumentation rather than user code. + With the default value of 0, the warning refers to where the class was instantiated + or the function was called. + + + :return: a decorator used to deprecate a function. + + .. versionchanged:: 1.2.13 + Change the signature of the decorator to reflect the valid use cases. + + .. versionchanged:: 1.2.15 + Add the *extra_stacklevel* parameter. + """ + directive = kwargs.pop('directive', 'deprecated') + adapter_cls = kwargs.pop('adapter_cls', SphinxAdapter) + kwargs["reason"] = reason + kwargs["version"] = version + kwargs["line_length"] = line_length + return _classic_deprecated(directive=directive, adapter_cls=adapter_cls, **kwargs) |